Measurements:
°C
°F
Long Beach
86°F
S 6 mph
Feels like: 92°F
Precip: 8%
World Resorts USA Long Beach Weather

7 Day Weather Forecast

09.15
tue
DAY
90°F
NW 7 mph
precip
16%
NIGHT
88°F
NW 6 mph
precip
8%
09.16
wed
DAY
88°F
W 19 mph
precip
60%
NIGHT
88°F
W 12 mph
precip
18%
09.17
thu
DAY
88°F
W 15 mph
precip
4%
NIGHT
86°F
SW 6 mph
precip
3%
09.18
fri
DAY
86°F
W 10 mph
precip
2%
NIGHT
86°F
N 5 mph
precip
4%
09.19
sat
DAY
86°F
NW 4 mph
precip
4%
NIGHT
86°F
NE 4 mph
precip
27%
09.20
sun
DAY
86°F
W 9 mph
precip
17%
NIGHT
86°F
NW 7 mph
precip
57%
09.21
mon
DAY
84°F
SW 6 mph
precip
53%
NIGHT
86°F
NW 7 mph
precip
6%

Long Beach Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Long Beach was 30.5°F. The maximum and minimum values were 29.7°F and 31.1°F respectively.

Long Beach on the Weather Map

Best Time to Visit Long Beach
The most sunny months:
October 20 days
September 14 days
November 14 days
The most warm months:
August 93.1 °F
July 92.7 °F
June 90.6 °F
Warmest sea temperature:
August 91.0 °F
July 90.4 °F
June 87.6 °F
The most cold months:
January 58.0 °F
December 62.3 °F
February 62.8 °F
The most rainy months:
August 4 days
July 4 days
June 4 days
The most windy months:
January 9 mph
April 8 mph
March 8 mph